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                    第 1 章 Kylin 概述
            
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                    1.4 核心算法
            
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                    1.5 Kylin 中的几核心概念
            
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                    3.1 数据准备
            
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                    3.2 创建 Project
            
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                    3.4 创建 Cube
            
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                    3.5 查询
            
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                    第 4 章 Kylin 可视化
            
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                    4.1 JDBC
            
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                    第 5 章 Cube 构建优化
            
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                                <h1 id="15-kylin-&#x4E2D;&#x7684;&#x51E0;&#x6838;&#x5FC3;&#x6982;&#x5FF5;">1.5 Kylin &#x4E2D;&#x7684;&#x51E0;&#x6838;&#x5FC3;&#x6982;&#x5FF5;</h1>
<h2 id="151-&#x7EF4;&#x5EA6;&#x548C;&#x5EA6;&#x91CF;">1.5.1 &#x7EF4;&#x5EA6;&#x548C;&#x5EA6;&#x91CF;</h2>
<p>&#x53C2;&#x8003;: <a href="12-kylin-gong-zuo-yuan-li.html">1.2</a></p>
<hr>
<h2 id="152-&#x4E8B;&#x5B9E;&#x8868;&#x548C;&#x7EF4;&#x5EA6;&#x8868;">1.5.2 &#x4E8B;&#x5B9E;&#x8868;&#x548C;&#x7EF4;&#x5EA6;&#x8868;</h2>
<h3 id="&#x4E8B;&#x5B9E;&#x8868;fact-table">&#x4E8B;&#x5B9E;&#x8868;(Fact Table)</h3>
<p>&#x4E8B;&#x5B9E;&#x8868;&#xFF08;Fact Table&#xFF09;&#x662F;&#x6307;&#x5B58;&#x50A8;&#x6709;&#x4E8B;&#x5B9E;&#x8BB0;&#x5F55;&#x7684;&#x8868;&#xFF0C;&#x5982;&#x7CFB;&#x7EDF;&#x65E5;&#x5FD7;&#x3001;&#x9500;&#x552E;&#x8BB0;&#x5F55;&#x7B49;&#xFF1B;</p>
<p>&#x4E8B;&#x5B9E;&#x8868;&#x7684;&#x8BB0;&#x5F55;&#x5728;&#x4E0D;&#x65AD;&#x5730;&#x52A8;&#x6001;&#x589E;&#x957F;&#xFF0C;&#x6240;&#x4EE5;&#x5B83;&#x7684;&#x4F53;&#x79EF;&#x901A;&#x5E38;&#x8FDC;&#x5927;&#x4E8E;&#x5176;&#x4ED6;&#x8868;&#x3002;</p>
<h3 id="&#x7EF4;&#x5EA6;&#x8868;dimension-table">&#x7EF4;&#x5EA6;&#x8868;(Dimension Table)</h3>
<p>&#x7EF4;&#x5EA6;&#x8868;&#xFF08;Dimension Table&#xFF09;&#x6216;&#x7EF4;&#x8868;&#xFF0C;&#x6709;&#x65F6;&#x4E5F;&#x79F0;&#x67E5;&#x627E;&#x8868;&#xFF08;Lookup Table)</p>
<p>&#x662F;&#x4E0E;&#x4E8B;&#x5B9E;&#x8868;&#x76F8;&#x5BF9;&#x5E94;&#x7684;&#x4E00;&#x79CD;&#x8868;: &#x5B83;&#x4FDD;&#x5B58;&#x4E86;&#x7EF4;&#x5EA6;&#x7684;&#x5C5E;&#x6027;&#x503C;&#xFF0C;&#x53EF;&#x4EE5;&#x8DDF;&#x4E8B;&#x5B9E;&#x8868;&#x505A;&#x5173;&#x8054;&#xFF1B;&#x76F8;&#x5F53;&#x4E8E;&#x5C06;&#x4E8B;&#x5B9E;&#x8868;&#x4E0A;&#x7ECF;&#x5E38;&#x91CD;&#x590D;&#x51FA;&#x73B0;&#x7684;&#x5C5E;&#x6027;&#x62BD;&#x53D6;&#x3001;&#x89C4;&#x8303;&#x51FA;&#x6765;&#x7528;&#x4E00;&#x5F20;&#x8868;&#x8FDB;&#x884C;&#x7BA1;&#x7406;&#x3002;</p>
<p>&#x5E38;&#x89C1;&#x7684;&#x7EF4;&#x5EA6;&#x8868;&#x6709;&#xFF1A;&#x65E5;&#x671F;&#x8868;&#xFF08;&#x5B58;&#x50A8;&#x4E0E;&#x65E5;&#x671F;&#x5BF9;&#x5E94;&#x7684;&#x5468;&#x3001;&#x6708;&#x3001;&#x5B63;&#x5EA6;&#x7B49;&#x7684;&#x5C5E; &#x6027;&#xFF09;&#x3001;&#x5730;&#x70B9;&#x8868;&#xFF08;&#x5305;&#x542B;&#x56FD;&#x5BB6;&#x3001;&#x7701;&#xFF0F;&#x5DDE;&#x3001;&#x57CE;&#x5E02;&#x7B49;&#x5C5E;&#x6027;&#xFF09;&#x7B49;&#x3002;</p>
<p>&#x4F7F;&#x7528;&#x7EF4;&#x5EA6;&#x8868;&#x6709;&#x8BF8;&#x591A;&#x597D;&#x5904;&#xFF0C;&#x5177;&#x4F53;&#x5982;&#x4E0B;:</p>
<ul>
<li>&#x7F29;&#x5C0F;&#x4E86;&#x4E8B;&#x5B9E;&#x8868;&#x7684;&#x5927;&#x5C0F;</li>
<li>&#x4FBF;&#x4E8E;&#x7EF4;&#x5EA6;&#x7684;&#x7BA1;&#x7406;&#x548C;&#x7EF4;&#x62A4;&#xFF0C;&#x589E;&#x52A0;&#x3001;&#x5220;&#x9664;&#x548C;&#x4FEE;&#x6539;&#x7EF4;&#x5EA6;&#x7684;&#x5C5E;&#x6027;&#xFF0C;&#x4E0D;&#x5FC5;&#x5BF9;&#x4E8B;&#x5B9E;&#x8868;&#x7684;&#x5927;&#x91CF;&#x8BB0;&#x5F55;&#x8FDB;&#x884C;&#x6539;&#x52A8;</li>
<li>&#x7EF4;&#x5EA6;&#x8868;&#x53EF;&#x4EE5;&#x4E3A;&#x591A;&#x4E2A;&#x4E8B;&#x5B9E;&#x8868;&#x91CD;&#x7528;&#xFF0C;&#x4EE5;&#x51CF;&#x5C11;&#x91CD;&#x590D;&#x5DE5;&#x4F5C;&#x3002;</li>
</ul>
<hr>
<h2 id="153-cube&#x3001;cuboid-&#x548C;-cube-segment">1.5.3 Cube&#x3001;Cuboid &#x548C; Cube Segment</h2>
<p>Cube&#xFF08;&#x6216; Data Cube&#xFF09;&#xFF0C;&#x5373;&#x6570;&#x636E;&#x7ACB;&#x65B9;&#x4F53;&#xFF0C;&#x662F;&#x4E00;&#x79CD;&#x5E38;&#x7528;&#x4E8E;&#x6570;&#x636E;&#x5206;&#x6790;&#x4E0E;&#x7D22;&#x5F15;&#x7684;&#x6280;&#x672F;&#xFF1B;&#x5B83;&#x53EF;&#x4EE5;&#x5BF9;&#x539F;&#x59CB;&#x6570;&#x636E;&#x5EFA;&#x7ACB;&#x591A;&#x7EF4;&#x5EA6;&#x7D22;&#x5F15;&#x3002;&#x901A;&#x8FC7; Cube &#x5BF9;&#x6570;&#x636E;&#x8FDB;&#x884C;&#x5206;&#x6790;&#xFF0C; &#x53EF;&#x4EE5;&#x5927;&#x5927;&#x52A0;&#x5FEB;&#x6570;&#x636E;&#x7684;&#x67E5;&#x8BE2;&#x6548;&#x7387;&#x3002;</p>
<p>Cuboid &#x5728; Kylin &#x4E2D;&#x7279;&#x6307;&#x5728;&#x67D0;&#x4E00;&#x79CD;&#x7EF4;&#x5EA6;&#x7EC4;&#x5408;&#x4E0B;&#x6240;&#x8BA1;&#x7B97;&#x7684;&#x6570;&#x636E;&#x3002;</p>
<p>Cube Segment &#x662F;&#x6307;&#x9488;&#x5BF9;&#x6E90;&#x6570;&#x636E;&#x4E2D;&#x7684;&#x67D0;&#x4E00;&#x4E2A;&#x7247;&#x6BB5;&#xFF0C;&#x8BA1;&#x7B97;&#x51FA;&#x6765;&#x7684; Cube &#x6570;&#x636E;&#x3002;&#x901A;&#x5E38;&#x6570;&#x636E;&#x4ED3;&#x5E93;&#x4E2D;&#x7684;&#x6570;&#x636E;&#x6570;&#x91CF;&#x4F1A;&#x968F;&#x7740;&#x65F6;&#x95F4;&#x7684;&#x589E;&#x957F;&#x800C;&#x589E;&#x957F;&#xFF0C;&#x800C; Cube Segment &#x4E5F;&#x662F;&#x6309;&#x65F6;&#x95F4;&#x987A;&#x5E8F;&#x6765;&#x6784;&#x5EFA;&#x7684;&#x3002;</p>
<hr>
<h2 id="154-&#x661F;&#x578B;&#x6A21;&#x578B;">1.5.4 &#x661F;&#x578B;&#x6A21;&#x578B;</h2>
<p>&#x6570;&#x636E;&#x6316;&#x6398;&#x6709;&#x51E0;&#x79CD;&#x5E38;&#x89C1;&#x7684;&#x591A;&#x7EF4;&#x6570;&#x636E;&#x6A21;&#x578B;&#xFF0C;&#x5982;&#x661F;&#x5F62;&#x6A21;&#x578B;&#xFF08;Star Schema&#xFF09;&#x3001;&#x96EA;&#x82B1;&#x6A21;&#x578B;&#xFF08;Snowflake Schema) &#x7B49;&#x3002;</p>
<h2 id="&#x661F;&#x578B;&#x6A21;&#x578B;">&#x661F;&#x578B;&#x6A21;&#x578B;</h2>
<p>&#x661F;&#x5F62;&#x6A21;&#x578B;&#x4E2D;&#x6709;&#x4E00;&#x5F20;&#x4E8B;&#x5B9E;&#x8868;&#xFF0C;&#x4EE5;&#x53CA;&#x96F6;&#x4E2A;&#x6216;&#x591A;&#x4E2A;&#x7EF4;&#x5EA6;&#x8868;&#xFF1B;</p>
<p>&#x4E8B;&#x5B9E;&#x8868;&#x4E0E;&#x7EF4;&#x5EA6;&#x8868;&#x901A;&#x8FC7;&#x4E3B;&#x952E;&#x5916;&#x952E;&#x76F8;&#x5173;&#x8054;&#xFF0C;<my>&#x7EF4;&#x5EA6;&#x8868;&#x4E0E;&#x7EF4;&#x5EA6;&#x8868;&#x4E4B;&#x95F4;&#x6CA1;&#x6709;&#x5173;&#x8054;</my>&#xFF0C;&#x5C31;&#x50CF;&#x5F88;&#x591A;&#x661F;&#x661F;&#x56F4;&#x7ED5;&#x5728;&#x4E00;&#x4E2A;&#x6052;&#x661F;&#x5468;&#x56F4;&#xFF0C;&#x6545;&#x53D6;&#x540D;&#x4E3A;&#x661F;&#x5F62;&#x6A21;&#x578B;&#x3002; </p>
<h2 id="&#x96EA;&#x82B1;&#x6A21;&#x578B;">&#x96EA;&#x82B1;&#x6A21;&#x578B;</h2>
<p>&#x5982;&#x679C;&#x5C06;&#x661F;&#x5F62;&#x6A21;&#x578B;&#x4E2D;&#x67D0;&#x4E9B;&#x7EF4;&#x5EA6;&#x7684;&#x8868;&#x518D;&#x505A;&#x89C4;&#x8303;&#xFF0C;&#x62BD;&#x53D6;&#x6210;&#x66F4;&#x7EC6;&#x7684;&#x7EF4;&#x5EA6;&#x8868;&#xFF0C;&#x7136;&#x540E;&#x8BA9;&#x7EF4;&#x5EA6;&#x8868;&#x4E4B;&#x95F4;&#x4E5F;&#x8FDB;&#x884C;&#x5173;&#x8054;&#xFF0C;&#x90A3;&#x4E48;&#x8FD9;&#x79CD;&#x6A21;&#x578B;&#x79F0;&#x4E3A;&#x96EA;&#x82B1;&#x6A21;&#x578B;&#x3002;</p>
<blockquote>
<p>&#x4E0D;&#x8FC7;&#xFF0C;<my>Kylin&#x53EA;&#x652F;&#x6301;&#x661F;&#x5F62;&#x6A21;&#x578B;&#x7684;&#x6570;&#x636E;&#x96C6;</my>&#xFF0C;&#x8FD9;&#x662F;&#x57FA;&#x4E8E;&#x4EE5;&#x4E0B;&#x8003;&#x8651;:</p>
</blockquote>
<ul>
<li><p>&#x661F;&#x5F62;&#x6A21;&#x578B;&#x662F;&#x6700;&#x7B80;&#x5355;&#xFF0C;&#x4E5F;&#x662F;&#x6700;&#x5E38;&#x7528;&#x7684;&#x6A21;&#x578B;&#x3002; </p>
</li>
<li><p>&#x7531;&#x4E8E;&#x661F;&#x5F62;&#x6A21;&#x578B;&#x53EA;&#x6709;&#x4E00;&#x5F20;&#x5927;&#x8868;&#xFF0C;&#x56E0;&#x6B64;&#x5B83;&#x76F8;&#x6BD4;&#x4E8E;&#x5176;&#x4ED6;&#x6A21;&#x578B;&#x66F4;&#x9002;&#x5408;&#x4E8E;&#x5927;&#x6570;&#x636E;&#x5904;&#x7406;&#x3002; </p>
</li>
<li><p>&#x5176;&#x4ED6;&#x6A21;&#x578B;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x4E00;&#x5B9A;&#x7684;&#x8F6C;&#x6362;&#xFF0C;&#x53D8;&#x4E3A;&#x661F;&#x5F62;&#x6A21;&#x578B;&#x3002;</p>
</li>
</ul>
<hr>
<h2 id="155-&#x7EF4;&#x5EA6;&#x7684;&#x57FA;&#x6570;">1.5.5 &#x7EF4;&#x5EA6;&#x7684;&#x57FA;&#x6570;</h2>
<p>&#x7EF4;&#x5EA6;&#x7684;&#x57FA;&#x6570;&#xFF08;Cardinality&#xFF09;&#x6307;&#x7684;&#x662F;&#x8BE5;&#x7EF4;&#x5EA6;&#x5728;&#x6570;&#x636E;&#x96C6;&#x4E2D;&#x51FA;&#x73B0;&#x7684;&#x4E0D;&#x540C;&#x503C;&#x7684;&#x4E2A;&#x6570;&#xFF1B;</p>
<p>&#x4F8B;&#x5982;&#x201C;&#x56FD;&#x5BB6;&#x201D;&#x662F;&#x4E00;&#x4E2A;&#x7EF4;&#x5EA6;&#xFF0C;&#x5982;&#x679C;&#x6709; 200 &#x4E2A;&#x4E0D;&#x540C;&#x7684;&#x503C;&#xFF0C;&#x90A3;&#x4E48;&#x6B64;&#x7EF4;&#x5EA6;&#x7684;&#x57FA;&#x6570;&#x5C31;&#x662F; 200&#x3002;</p>
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